half-line

英 ['hɑːfl'aɪn] 美 ['hɑːfl'aɪn]

• n. 半线；射线

例句

用作名词 (n.)

1. The archer is standing on the shooting line.
   那个箭手站在起射线上。
2. A ray is a line beginning at a certain point and extending indefinitely.
   射线是一根从某一点开始，无限止地延伸的线。

词汇搭配

• half-maximum line breadth 半峰线宽
• half-wave transmission line 半波传输线,半波输电...
• half-court line 半场线
• half line 半直线
• half wave transmission line 半波输电线
• half-line pulse 半直线脉冲